<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='UTF-8'>
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<title>Document</title>
<style>
  [v-cloak]{
    display: none;
  }
</style>
</head>
<body>

  <div id='app'>
    <div v-cloak>
      {{msg}}
    </div>
  </div>

<script src='https://cdn.bootcdn.net/ajax/libs/vue/2.6.12/vue.js'></script>
<script>
  const app = new Vue({
    el: '#app'
    ,data: {
      msg: 'hello vue'
    }
    ,methods: {

    }
  })
</script>
</body>
</html>